public class PC {
    CPU cpu;
    HardDisk HD;
    void setCPU(CPU cpu){
        this.cpu=cpu;
    }
    void setHardDisk(HardDisk HD){
        this.HD=HD;
    }
    void show(){
        System.out.println("CPU速度:"+cpu.getSpeed());
        System.out.println("硬盘容量:"+HD.getAmount());
    }
}
